Radiator.



H. DE BOISCHEVALIER.

Patented July "K, 91@

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HENR DE BOZSCHEVALXER, F DETROIT, MICHXG-AN, lliSSIGrNlIlR` OF ONE-THIERD TO LOUIS CHEVROLET, OF DETROIT, MICHIGAN.

RADXATOR.

Specification of Letters Patent.

Patented July little,

.Application iiled December 23, 1912. Serial No. 738,1E7.

T0 all 'fw/om it may concern Bc 'it known that l, HENRI un Eersel-Inm- Linu, a citizen of France, residing at Detroit, in the county of lVayne and State of Michigan., have invented certain new and useful Improvements in Radiators, of which the following is a specification, reference being;^ had therein to the accompanying drawings.

rlhis invention relates to radiators especially adapted for use upon motor 'vehicles and more particularly to a core for such structures, certain objects of the invention being' to provide a simple, cheap. and rigid construction which issuch as to facilitate manufacture and obviate "waste of Inatcrial.

With these and other objects in View, the invention consists in 'forming all of the radiating members between each pair of tubes -troni a single sheet of metal stamped into shapeto form a plurality of air passages and gire the appearance of the common rectangular tube construction, and further, to provide certain other new and useful features in the construction and arrangement of parts, all as hereinafter more fully set *forth and pointed out in the claims, reference be- `ingr had to the accompanying drawings in which,

Figure l is a. front elevation of a portion of a radiator core embodying the invention, with portions broken away to show the construction; Fig.- Q, a horizontal sectionthrough the saine on the line 2 2 of Fig. l; Fig. 3 is a. yertical section on the line 3 3 of Fig. l; Fig. Ilis a face View of a portion of a blank from which the tubes and radiating' members of the core are formed; and Fig. 5 is a perspective View of' a portion of the blank partially formed up.

lt will be understood that aradiator elnbod ying this invention will be constructed in the usual manner with top and bottoni tanks which are not shown in the drawing` as they torni no part ot this invention which resides entirely in the cooling core forming the connection between such tanks.

As shown in the drawing, the core coniprises a plurality of thin flat tubes which are equal in width. to the thickness of the core, extending through the saine from front to rear thereof, and these tubes open in the space said tubes apart. These fin members each extend the full length of the tubes and are of the same Width as said tubes, extending from the front to the rear face of the core.y As shown, each tube l and adjacent fin member may be stamped vlroni a single sheet of metal, which sheet is shown in Fig. 4 of the drawing. That portion of the sheet which forms the side walls 3 and 4 of each tube is folded longitudinally upon itself along the dotted lines 5 shown in Fig. l and the sheet is then folded along the dotted lines 6 adjacent to its free edge and bent inwardly to form an inwardly extending flange. 7 to engage the opposite side of the tube and close the edge thereof.

Integral with that portion of the sheet `which forms the side l ot' the tube, is the portion of the sheet which is stamped, up to forni the fin member, said member comprising, when so stamped out and folded into shape, a series of spaced horizontal strips 8 formed by severing' the `metal along horizontal spaced parallel lines; thence vertically :trom the ends of said lines and bending the portions 8 thus-partiallycsevereh at right angles to the plate. These strips or walls thus formed extend across the space between adjacent tubes in the assembled radiator with an integral vertical stidening Hang@ 9 along one edge of each strip formed by the body of metal left between the openings troni which the walls 8 are struck up. These flanges S) are connected at each end by vertlcal strips 10 which thus support said flanges I and 13, each slit being equal in length to-tbe desired vertical length ofthe opening, then cutting` the metal transversely between the lines midway of the ends or' the several slits and bending the metal thus partially severed, laterally from the plate to form pairs oi spaced flanges 1G. A. like vertical. row of openings 11 1s formed in a like manner ong the ,outer edge of 'the other vertical strip at the other ends of the flanges 9 by cuttin the metal 'at intervals along the vertical lines la and 15 and bending the same laterally to form similar langes 16 at that end. of 'the strips 9.' The strip of metal alon 'the'edge of the 'blank between said edge an .the line 15, forms a supporting 'strip 17 similar lto the strips l() to connect horizontal bars 1.8 formed by the metal left between said openings 11 with the edges of which bars the flanges i6 are integral.' The metal left between the openings 11 which are formed along the edge oi! the. portion l of the sheet, forms lilrehorizontal bars 19 with one end of said bar integral with the adjacent portion 4: of the blank and the other end integral with the adjacent vertical strip 10. .The blank thus partially formed up, is shown in Fic. 5, and the forming is then completed by bending the blank along the line 12 at right angles to the wall 4 and again at right angles along the line 18 to bring the side or wall formed by the strips 10 and flanges 9 into parallelism with the wall d with the side edges 03: the horizontal dividing walls 8 adjacent to said wall a and their ends between thev pairs of inwardly projecting flanges 16.. The blank is then folded at right angles along the line v15 to bring the edge strip 17 against the end edges of the outer pairs of flanges i6, and again folded at right angles along the line 14 to bring the crossbars 18 across' the ends of the walls 8 with the pairs of flanges 16 embracing said ends.

Rigid open Jiframes are thus formed from a sheet of.- very thin metal bysimply -cuttinfr and bending lthe metal 'as described, and these frames maybe formed integral with that portion of cach yblank which is folded to 'form a tubeor each may be :formed from a separate blank and placed between the separately formed tubes to space the same apart and provide radiating members dividing the spaces between the tubes into a plurality of horizontal air pas sages extending through the core, The core may be readily .assembled after the tubes and fin members are formed up, by simply placing a sulicient number of the parts side by side and then dipping them in a solder bath in the usual manner, to unite the parts. Y

Obviously, changes may be made in the construction and arrangement of parts without departing from the spirit of my invention and I do not Wish to limit myself.' to the particular form or arrangement showin Having thus fully described my invention what l claim isz- 1. A fin construction for radiators having spaced tubular members, comprising a 'structure having horizontal spaced walls exu tending across the space between -said tubes and dividing the same into a plurality of air passages extending between said members, and an integral vertical portion ex .tending across the space between said tu- -bular members adjacent to one end of said horizontal walls and formed with openings opposite the ends of said air passages.

2. In a fin construction for radiators having spaced tubular members1 each provided with a .plurality of horizontally extending walls, having partially severed portions turned at right angles to the body of the blank to form flanges extendinoacross said space between the tubes and dividing said space into a plurality of horizontal air passages extendmg between said tubular members, and having end portions bent to extend across said space between the tubes at the end of said walls.

3. A fin construction for radiators having spaced tubular members7 comprising a iin member formed oi? portions extending laterally to form horizontal walls, andvbaving vertical strips and horizontal bars integral 'with said strips, said bars being extended across 'the space between the tubes.

a. A finconstruction for radiators having spaced tubular members, comprising `portions extending laterally to form. horlzontal walls spaced apart and extending across the space between said tubular members, and havin vertical members adjacent to the ends'oft. e horizontal walls formed with transverse bars oppositesaid ends of said walls with openings between the bars to forni air passages between said tubular members open. at each end, said bars being each formedl with inwardly extending flanges embracing the ends of the horizontal walls. l

5. In a radiator, a core comprisin a series of tubular members having parallel side walls and fin members between the tubular members each formed integral with one of theI adjacent tubular members, each tubulaimember, and its iin member being formed from a single sheet of metal, a portion of soy Mesem 4 the sheet being folded pon itself to form theeto to fom the other end fece ef the the tubulin? member and :t secon portion tin member.

extending 1ete1a1ly from one Wall of the tubulin; member to form en end fece of the fin member, a third portion of said sheet extending at right angles to seid end face to parallel With-said Wall of the tube and u v'eurthl portiona extending et Tight englee n testimony whereof 3i atx my signature in presence of two Wtnesses HENRE DE BISGHEVER.

Witnessesz Lewis FMNDERS ANNA 1%. Dem. 

